A good Estate Agent will do this Vanna and should make inquiries as to the monetary position of all enquirers. Establish this with your Agent now while time is young.
After being with one since June we ditched them yesterday after this fiasco, and found one of the old school that does this automatically thus saving frazzled nerves - and possible murder!!!!
We had signed the contract, packed most of our stuff, surrounded by boxes, just waiting for the exchange which we were told was imminent....then this.........Our dream home is still waiting, as this is the end of the chain and the lady whose house we are buying from is a darling and has given us until the first week in Jaunuary to find another buyer for our house - again!!